Highly Regioselective Halogenation of Pyridine <i>N</i>-Oxide: Practical Access to 2-Halo-Substituted Pyridines
作者:Ying Chen、Jinkun Huang、Tsang-Lin Hwang、Maosheng J. Chen、Jason S. Tedrow、Robert P. Farrell、Matthew M. Bio、Sheng Cui
DOI:10.1021/acs.orglett.5b01057
日期:2015.6.19
A highly efficient and regioselective halogenation reaction of unsymmetrical pyridine N-oxide under mild conditions is described. The methodology provides a practical access to various 2-halo-substituted pyridines, which are pharmaceutically important intermediates.
Application of 1,1-ADEQUATE, HMBC, and Density Functional Theory To Determine Regioselectivity in the Halogenation of Pyridine <i>N</i>-Oxides
作者:Tsang-Lin Hwang、Michael D. Bartberger、Ying Chen
DOI:10.1021/acs.orglett.6b00370
日期:2016.5.6
two-bond proton to carbon correlations to unequivocally distinguish the major and minor regioisomers of ortho-halogenated pyridines and to aid in assignment of the corresponding proton and carbon chemical shifts. M06-2X/6-31+G(d,p) free energies of the regioisomeric intermediates arising from deprotonation correctly predict the experimentally observed preference and thus can be used to tune the substituent
The present invention relates to compounds described herein Formula (I) and pharmaceutical acceptable salts thereof, which modulate the activity of calcium release-activated calcium (CRAC) channel. The invention also describes the compounds of Formula (I) and pharmaceutical compositions containing such compounds thereof for treating, managing, and/or lessening the severity of diseases, disorders, syndromes or conditions associated with the modulation of calcium release-activated calcium (CRAC) channel.
[EN] SUBSTITUTED PYRIDINE COMPOUNDS AS CRAC MODULATORS<br/>[FR] COMPOSÉS SUBSTITUÉS DE PYRIDINE EN TANT QUE MODULATEURS DE CRAC
申请人:LUPIN LTD
公开号:WO2013164769A1
公开(公告)日:2013-11-07
The present invention relates to compounds described herein Formula (I) and pharmaceutical acceptable salts thereof, which modulate the activity of calcium release- activated calcium (CRAC) channel. The invention also describes the compounds of Formula (I)and pharmaceutical compositions containing such compounds thereof for treating, managing, and/or lessening the severity of diseases, disorders, syndromes or conditions associated with the modulation of calcium release-activated calcium (CRAC) channel.